Moles

Definition

Moles are spots on the skin where pigmented cells have clustered together. They typically appear as light to dark brown spots on the skin that are either flat or raised. Most people have benign moles, which are harmless.

Moles that become atypical are called dysplastic nevi. They may eventually become
melanoma
. Melanoma is a form of skin cancer.

When Should I Call My Doctor?

If you are concerned about a mole because it looks different from the others, or you are over age 30 and notice a new mole, call your doctor. Also, call your doctor if you notice any signs that an existing mole may be atypical.

Diagnosis

Your skin will be examined. You will be asked about your symptoms and medical history.

Your bodily tissues may be tested. This can be done with a
biopsy
to remove all or part of the mole to be tested for cancer cells.

Treatment

Benign moles do not need to be treated. However, surgery may be done to remove those that are unsightly or irritated.

Treatment for atypical moles includes monitoring or removal. Atypical moles that are cancerous or suspected of being cancerous can be
removed
. The mole tissue is examined under a microscope. If cancer cells are found, more surgery is done to remove any remaining portion of the mole and surrounding tissue.

Prevention

To help prevent benign moles from becoming atypical and possibly cancerous:

Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.